Delignification of lignocellulosic material.

摘要

A process for the delignification of lignocellulosic materials wherein lignocellulosic material is treated with an alkaline pulping liquor under conditions suitable for the Kraft or Soda Processes and containing a quinonoid additive material which is an indole substituted quinone having a defined structure or a microorganism, a cellular component or a crude or a refined extract of a microorganism containing the indole substituted quinone. The substituted quinones are produced by cultivating microorganism cells of strains of Aspergillus terreus var aureus under suitable conditions.